inject

testClientScannerIsResetWhenScanThrowsIOException

Tests the case where a Scan can throw an IOException in the middle of the seek / reseek leaving
the server side RegionScanner to be in dirty state. The client has to ensure that the
ClientScanner does not get an exception and also sees all the data.

testScannerFailsAfterRetriesWhenCoprocessorThrowsIOE

Tests the case where a coprocessor throws a regular IOException in the scan. The expectation is
that the we will keep on retrying, but fail after the retries are exhausted instead of retrying
indefinitely.